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-rw-r--r--net/ipv4/sysctl_net_ipv4.c6
-rw-r--r--net/ipv4/tcp.c4
2 files changed, 2 insertions, 8 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 4cb9cd2f2c39..7a7724da9bff 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -778,7 +778,6 @@ EXPORT_SYMBOL_GPL(net_ipv4_ctl_path);
static __net_init int ipv4_sysctl_init_net(struct net *net)
{
struct ctl_table *table;
- unsigned long limit;
table = ipv4_net_table;
if (!net_eq(net, &init_net)) {
@@ -815,11 +814,6 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
net->ipv4.sysctl_rt_cache_rebuild_count = 4;
tcp_init_mem(net);
- limit = nr_free_buffer_pages() / 8;
- limit = max(limit, 128UL);
- net->ipv4.sysctl_tcp_mem[0] = limit / 4 * 3;
- net->ipv4.sysctl_tcp_mem[1] = limit;
- net->ipv4.sysctl_tcp_mem[2] = net->ipv4.sysctl_tcp_mem[0] * 2;
net->ipv4.ipv4_hdr = register_net_sysctl_table(net,
net_ipv4_ctl_path, table);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index a34f5cfdd44c..37755ccc0e96 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3229,7 +3229,6 @@ __setup("thash_entries=", set_thash_entries);
void tcp_init_mem(struct net *net)
{
- /* Set per-socket limits to no more than 1/128 the pressure threshold */
unsigned long limit = nr_free_buffer_pages() / 8;
limit = max(limit, 128UL);
net->ipv4.sysctl_tcp_mem[0] = limit / 4 * 3;
@@ -3298,7 +3297,8 @@ void __init tcp_init(void)
sysctl_max_syn_backlog = max(128, cnt / 256);
tcp_init_mem(&init_net);
- limit = nr_free_buffer_pages() / 8;
+ /* Set per-socket limits to no more than 1/128 the pressure threshold */
+ limit = nr_free_buffer_pages() << (PAGE_SHIFT - 10);
limit = max(limit, 128UL);
max_share = min(4UL*1024*1024, limit);